题目

用方框中所给词的适当形式填空 cottage rent mercy bathe damp narrow garbage (1) Wipe the surface witha cloth. (2) They showed no totheir enemies. (3) We're staying in aholiday in Dorset. (4) Can you take out thewhen you go out? (5) On hot days we oftengo in the river. (6) I pay a higher thanthe other tenants(房客) because my room is bigger. (7) The road was too for cars to pass.如图所示,在墙上挂着一块边长为16cm的正方形木板,上面画了小、中、大三个同心圆,半径分别为2cm,4cm,6cm,某人站在3m之外向此板投镖.设投镖击中线上或没有投中木板时都不算,可重投,问: (1)投中大圆内的概率是多少? (2)投中小圆与中圆形成的圆环的概率是多少? (3)投中大圆之外的概率是多少?
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